Arefin Hasib

- Planning, configuration, commissioning and troubleshooting of WLAN Networks. - Operation and maintenance of ticket systems, data centre, databases, Zabbix Server and remote tools. - assuming responsibility in the project team and presenting results to decision-makers.

Development of a chatbot using the Seq2seq model

—Testing and certifying SIP providers using existing automated testing tools —Communication with technical contact persons on the part of SIP providers

Simulation of QPSK transmission with BER evaluation by using GNU-Radio Companion. Implement the Sample Up, Sample Down, QPSK Modulator and Demodulator Blocks in GNU radio companion and BER values can be evaluated for different parameters e.g. Eb/N0

VoIP Call Server with Multimedia Capabilities Our objective of the project Establish SIP based video calling in two individual servers. Also video calling between two servers,Analysis video call packet to observe bandwidth occupying in the network by video call also to check burstiness and Implementind a complete call server

VoIP Provider Call Server using Elastix and Asterisk. The objective of the project was divided into two parts: Create a SIP based VoIP call server using Elastix so that clients under that server can call each other. Second part was to connecting call from clients of our Elastix server to other clients who are located into a different server. To create second server we used another PC and implemented Asterisk in it .

Installing and configuring computer hardware operating systems and applications,Monitoring and maintaining computer systems and applications,Testing and evaluating new technology,troubleshooting system and network problems

Designing,Installation,maintenance of the project,maintenance of the Equipments,Quality control,Operational Management

Next Generation Networks,Advance Multimedia communication,Digital Signal Processing,Advance channel coding,Audio video coding,Cryptography

Cellular Mobile communication,Digital Signal processing,Signal and Linear system,control system,Digital logic Design,Telecommunication Engineering,Renewable Energy Technology,Power system Analysis,Digital Electronics,Electronic Device,Industrial Electronics, Electrical Machines